Boron Nitride 10 g

The mineral behind the silky-smooth blur effect in makeup formulas

Boron nitride is an ultrafine powder valued for its plate-like particle structure, which allows it to glide effortlessly across skin, creating a soft-focus blur that visually minimizes fine lines and pores. This unique slip is exactly why the ingredient has become a favorite among formulators of foundations, loose powders, primers and highlighters worldwide. The 10 gram size makes it convenient for testing a new formula at home or in a small studio before committing to a larger batch. This item belongs to the mineral fillers category, which brings together raw materials for stable, pleasant textures in color cosmetics.

Beyond cosmetics, boron nitride is widely used across industry as a heat-resistant lubricant and filler for ceramics, electrical insulation materials and composites operating under extreme temperatures. In electronics and chemical manufacturing, it is prized for combining thermal conductivity with electrical insulation, making it essential in semiconductor production and thermal interface pastes. Yet in cosmetics this mineral shows a different side entirely: its lamellar particles spread evenly across skin, resist caking, and do not accentuate dry patches, setting it apart from many conventional filler powders.

In powder and eyeshadow formulas the ingredient is typically added during dry blending, at room temperature without any heating, which preserves its texture-enhancing qualities. Recommended usage ranges from 3 to 15 percent of the total dry mix weight, depending on the desired slip and matte finish. For a more radiant result, formulators pair it with optical fillers such as ultrafine silk powder, which enhances softness on application, or pearl powder, adding a subtle luminous glow. It also blends smoothly with base mineral pigments and mica, helping bind diverse particles into a cohesive, uniform composition.

For anyone building an eyeshadow or blush line, the mineral base for eyeshadows and blushes makes an excellent starting point, allowing boron nitride to be blended in for a silkier, longer-lasting texture. The powder resists oxidation and requires no preservatives, simplifying its use in anhydrous formulations. Store it in a sealed container in a dry area at room temperature, away from moisture that could cause clumping over time.

Boron nitride combines well with nearly all oil and powder ingredients, including vegetable oils, titanium dioxide, iron oxides, talc and kaolin clay. It rarely reacts with common cosmetic materials, making it a versatile bridging ingredient in complex formulas. In cream-based products it is sometimes added in small amounts to introduce a light silky glide without weighing down the formula.

Soft-focus setting powder

Boron nitride 3 grams

Kaolin clay 3 grams

Titanium dioxide 0.5 grams

Yellow iron oxide 0.5 grams

Cosmetic talc 3 grams